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31 August 2017 Page 1 of 10

with overload protection

with optional travelling end stop

with spark resistant components

Tiger Professional Lever Hoist Model No. PROLH

Main Features DNV GL Verification tested according to NORSOK R-002 UK Network Rail PADS Certification Available with slipping clutch overload protection Range from 800kg – 20000kg Available with forged clevis adaptor components Patented Quad Cam Pawl System Equipped with our unique intelligent Torsion Brake System One piece construction pinion gear Light load tested and certified at 2% of the rated capacity No requirement for preload tension to activate the ratchet mechanism Adaptable to use both inverted and horizontally Each hoist is individually proof tested at 1.5 times the rated capacity Using only the highest quality alloy calibrated load chains according to

EN 818-7 and ISO 16872 Lightweight and portable Individual spares readily available Operating temperature of - 40°C to + 50°C All major parts are heat treated and precisely machined Finished in high quality powder coat paint offering excellent corrosion

protection Can be chained up to meet your exact requirements Also available with stainless steel load chain or spark resistant hooks Available with load bearing swivel hooks to meet relevant

standards i.e. AS 1418.2 Meets or exceeds all international standards




Tiger PROLH Lever Hoists PROLH lever hoists incorporate many of the advanced safety features that Tiger has developed including one piece construction pinion gears and our patented Quad Cam Pawl System. These units meet and exceed all the requirements within BS EN 13157: 2004+A1:2009, ANSI/ASME B30.21, AS1418.2 and SANS 1636. The PROLH is ideally suited for applications in the overhead transmission industry, shipyards and offshore platforms and is also suitable for underground mining use. Our patented Quad Cam Pawl System guarantees permanent engagement of at least one of the two reciprocating cam pawls fitted to the PROLH, ensuring the pawl only just clears the ratchet wheel, with the minimum of clearance as required under BS 4898:1973. But most importantly, in the unlikely event of a pawl spring failure, this design will ensure the brake is still fully functional and the load is sustained without damage to the mechanism. This model includes our unique rotational inertia driven torsion switch brake and freewheeling system. This brake system was designed by our research and design team to counter known failure modes in commonly used and copied longitudinal “push-pull” mechanisms or traditional style “Weston” type brake systems used on alternative lever hoists. This Tiger brake system is now a proven design with many thousands of hours of empirical evidence as proof of design and efficiency. This design removes the need for inefficient old style longitudinal disengagement methods of pulling the brake system apart to facilitate freewheeling. This highly efficient method of operating is not only safer but easier for the operator whilst measurably increasing the brake take up efficiency rate. Tiger uses an 8 point multi start thread pinion shaft which has also increased brake reaction times. The rotational engagement of the brake works with the direction of the load sheave creating highly efficient braking ratios - up to 50% measurable difference compared with longitudinal push-pull brake systems. This model is lightweight, compact and of rugged construction with the handle, gear case and brake cover made entirely of pressed steel, producing strong resistance to impact damage. We use only the highest quality materials precisely machined throughout ensuring the PROLH is the ideal hoist for long term use with less maintenance and servicing costs. Certification: Each unit comes fully certified with a test certificate or an EC Declaration of Conformity stating compliance with the essential health and safety requirements of the Machinery Directive 2006/42/EC. This document clearly states the proof test at 1.5 times the rated capacity and the light load test of 2% of the rated capacity, which exceeds the requirements of the current applicable standard.




UK Network Rail PADS Certification Our PROLH lever hoist has UK Network Rail PADS Certification - Certificate of Acceptance PA05/06651 Adaptor Components Drop forged adaptor maintaining maximum strength. Tested and certified to 4:1 factor of safety. Self-locking (safety) hook, clevis shackle, reevable egg (master) link or sling hook fittings available (for units up to 10t capacity). Safety Brake: Our unique rotational inertia driven torsion switch brake and freewheeling system automatically engages when the lever hoist feels the slightest resistance or load. This key feature means that the PROLH will raise, hold and lower the lightest of loads without slipping. The two stage process protects against accidental light load failures by putting the hoist into neutral whilst under load. This highly efficient method of operating is not only safer but easier for the operator whilst measurably increasing the brake take up efficiency rate. This design is now fully utilised throughout our PROLH range offering topside professional users unprecedented access to the most highly efficient lever hoist brake system on the market. The bonded marine friction discs are free of asbestos and have been developed and designed for subsea use creating a highly efficient, reliable braking surface for use in the most extreme conditions.

Unique brake mechanism with anti-tamper design, shown in “freewheel” and “brake engaged” positions.




Light Load Protection: The unique brake system designed for the PROLH guarantees a light load protection at 2% of the rated capacity.

Patent Protected Quad Cam Brake Pawl System: This latest development in brake efficiency guarantees permanent engagement of at least one of the two reciprocating cam pawls fitted to the PROLH, ensuring the pawl only just clears the ratchet wheel, with the minimum of clearance as required under BS 4898:1973. But most importantly, in the unlikely event of a pawl spring failure, this new design will ensure the brake is still fully functional and the load is sustained without damage to the mechanism.

Brake Efficiency: Tiger uses an 8 point multi start thread pinion shaft which has measurably increased brake reaction times. The rotational engagement of the brake works with the direction of the load sheave creating highly efficient braking ratios - up to 50% measurable difference compared with longitudinal 4 point pinion threads.

Overload Protection: The PROLH lever hoist can be fitted with a slipping clutch overload mechanism to protect it from overload. When the load limit is exceeded, the clutch in the chain wheel will slip, allowing the handle to be operated whilst not engaging the gear box. This prevents further lifting of the load, though lowering is still possible. The PROLH with overload protection is DNV GL Verification tested according to NORSOK R-002.

One Piece Construction Pinion Gears: PROLH gearboxes contain one piece pinion gears. This revolutionary process in gear manufacturing uses drop-forged raw material, precision machined and heat treated with precise ratios between teeth and body.




Hooks: Our hooks incorporate our latest Patent Pending “EZ Check” feature which allows operators and inspection engineers to easily check to see if the hoist has been previously overloaded or shock loaded by simply measuring between the triangle of pop marks. Our drop forged and heat treated alloy hooks are furnished with heavy duty spring latch kits that fully engage into the recessed nose of the hook safeguarding the load when side loading of the latch occurs and offering maximum load security. The swivel hooks are attached to the yoke using high grade nuts & bolts allowing for complete inspection during any statutory inspection or written scheme maintenance. Available with hooks that swivel under the full working load limit, to meet relevant standards i.e. AS 1418.2. Also available with spark resistant hooks.

Chain End Stops: User friendly heavy duty end stops make it easy for the operator to position the chain while "freewheeling”, but most importantly this "end stop" will hold a load of at least 2.5 times the rated capacity when supporting the full load without restraint from other components e.g. brake or gearing.

Optional Travelling Chain End Anchorage: Our specially designed adjustable chain end stop is available as an option. Tiger have specifically profiled and manufactured this item to fit the contours of the hoist. This offers complete assurance to the operator, whilst maintaining the flexibility of “freewheeling” the chain to any required starting position.

Grease: High performance premium quality grease allows the PROLH hoists to be certified for use within a temperature range of -40°C to +50°C far exceeding the requirements of current standards.




Chain Stripper: The chain stripper is specifically designed to guide the load chain safely onto or off the load sheave without snagging or jamming. The fluted chain stripper allows the safe use of the PROLH when used in any orientation.

Forgings: Recessed forgings offer full protection to the load chain anchor bolts on all our bottom hooks.

Finish: The PROLH is finished in our high quality powder coat paint offering excellent corrosion protection. Load Chains: Tiger only use the highest quality alloy, calibrated load chains in Grade 80 (T) or 100 (V) conforming to EN818-7 and ISO 16872. The PROLH comes as 1.5mtr HOL as standard but can be chained up to whatever length is required. Stainless steel load chain available on request for certain capacities. Mechanical Efficiency: All major components are heat treated and precisely machined to ensure long term smooth operation. High gear ratios keep physical effort to a minimum. Handle: Tiger lever hoist handles are ultra-strong, with strengthening side ribs. This special feature:

Protects against impact damage

Protects the label

Increases its robustness and longevity

Eliminates torsion.




Performance: The PROLH lever hoist has undergone a full test program that includes: Type Testing

Ultimate strength test, at least 4 times the Working load limit (WLL)

Chain end anchorage test, passing at least 4 times the WLL without any restriction of the brake or gears

Test on every hoist

Proof loading at 1.5 times the rated capacity

Light load testing at maximum of 2% rated capacity

Technical Data

Product Code

Capacity (tonne)

Effort (kg)

Dimensions (mm) Load Chain Standard HOL (m)

Mass @ std

HOL (kg)

Mass for extra metre

HOL (kg)

A B C D E F1 F2 Diameter (mm)

No. of

falls

PLH-0075 0.8 23 128 236 295 158 99 28 45 ⌀6.3 1 1.5 7.5 0.9

PLH-0150 1.5 26 154 360 320 172 104 34 51 ⌀7.1 1 1.5 10.5 1.1

PLH-0300 3.0 38 182 360 400 195 108 36 56 ⌀10.0 1 1.5 18.0 2.2

PLH-0600 6.0 40 242 360 570 195 108 49 70 ⌀10.0 2 1.5 28.5 4.3

PLH-1000 10.0 47 379 360 630 195 108 54 87 ⌀10.0 3 1.5 46.0 6.5

PLH-1500 15.0 44 566 360 840 195 108 59 81 ⌀10.0 5 1.5 112.0 10.8

PLH-2000 20.0 49 470 360 1050 250 160 81 110 ⌀10.0 6 1.5 156.0 13.1

See page 10 for more hook information

Tiger 15t hook detail




Technical Drawings

0.8t 1.5t

3.0t 6.0t




10.0t 15.0t

20.0t




Hook Technical Data Capacity (Tonnes)

Collar measurements (mm) Hook thickness at point shown in diagram (mm)

Hook throat Opening (mm)

“EZ Check” measurement (mm)

a b c d e f

0.8 8 13.5 23 17 34 52

1.5 10 15.5 26 21 39 59

3.0 12.5 20 37 32 42 76

6.0 19 30 43 36 58 86

10.0 20 33 52 48 70 121

15.0 - 36 67 60 67 130

20.0 - 48 77 72 90 162

Traditional Tiger Hooks Tiger Hooks with new “EZ Check” 3 point marking system

Newer models are fitted with the patent pending Tiger “EZ check” 3 point marking system. With this system a quick check that the A and B measurements are the same (as shown in the diagram below) will indicate if the hooks have stretched If A≦B the hook is fine; If A>B the hook needs to be replaced:

Due to our policy of continual product development, dimensions, weights and specifications may change without prior notice. Please check with your Tiger sales team when ordering.

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